Sunday, November 22, 2009

Changes in the climate and a windier Great Lake

Chalk up another effect of climate change: it’s getting windier over Lake Superior.

That is the conclusion of a study by scientists who have looked at the effects of increasing surface water temperatures in the lake and air temperatures over it. The water has warmed faster than the air, creating instability in the air mass that results in stronger winds.

Ice coverage of Lake Superior has declined in recent decades, which means that the lake starts to warm sooner, becoming stratified. The earlier this stratification occurs, Dr. Desai said, the warmer the top layer gets in the summer.

Data from buoys and satellites showed that this warming outpaced that of the air above it. That means the thermal gradient between the two was reduced.

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Welcome to my weather blog. Every day I sift through hundreds of stories, maps, graphics and meteorological web sites, trying to capture some of the most interesting weather nuggets, the stories behind the forecast. I'll link to stories and share some of the web sites I use.
I'm still passionate about the weather, have been ever since Tropical Storm Agnes flooded my home in Lancaster, PA in 1972. I've started 5 weather-related companies. "EarthWatch" created the world's first 3-D weather graphics for TV stations - Steven Spielberg used our software in "Jurassic Park" and "Twister". My last company, "Digital Cyclone", personalized weather for cell phones. "My-Cast" was launched in 2001 and is still going strong on iPhone, Android and Blackberry. I sold DCI to Garmin in 2007 so I could focus on my latest venture: WeatherNation.
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